I kept the flowers white and just added a touch of green in the centers. The surrounding colors make them stand out. I also added Crystal Effects to the vase.
My blog post: http://addinkandstamp.blogspot.com/2011/06/on-grow-vase-of-white-flowers.html
TFL! Lisa Young
Stamps: On the Grow, Sanded background
Inks: Black stazon, Old Olive, sahara sand, certainly celery
Papers: Whisper White, Sahara Sand, Basic Black, Play date dsp
Accessories: buttons, Old Olive grosgrain, aquapainter, crystal effects